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On Topaz and Beryl from the granite of Lundy Island

Published online by Cambridge University Press:  14 March 2018

W. F. P. McLintock  and
T. C. F. Hall
W. F. P. McLintock
Affiliation:
Royal Scottish Museum
T. C. F. Hall
Affiliation:
School of Metalliferous mining, Cornwall
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Extract

Although topaz and beryl have been previously recorded from Lundy Island, no account has hitherto been published of their characters and mode of occurrence. In the summer of last year a geological survey of the Island was commenced by one of us, and during the progress of the work good crystals of these minerals were obtained, the results of an examination of which it seems desirable to place before this Society.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 16 , Issue 76 , December 1912 , pp. 294 - 301
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1912

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References

Page 294 note 1 Hall, T. M., ‘The Mineralogist's Directory,’ London, 1868, p. 58 Google Scholar.

Page 294 note 2 Perceval, S. G., ‘On the occurrence of topazes in Lundy Island.’ Geol. Mag., 1870, vol. vii, p. 192 CrossRefGoogle Scholar.

Page 295 note 1 Hall, T. M., ‘Notes on the Geology and Mineralogy of the Island of Lundy.’ Trans. Devon. Assoc., 1871, vol. iv, p. 624 Google Scholar.

Page 295 note 2 Truro, 1871, Part II, p. 101.

Page 297 note 1 Cf. Hintze, , ‘Handbuch d. Mineralogie,’ 1889, vol. ii, p. 112 Google Scholar.

Page 298 note 1 Calculated from the elements given in Dana's ‘System of Mineralogy,’ 6th edition, 1892.

Page 300 note 1 ‘The Geology of the Country around Bodmin and St. Austell.’ Mem. Geol. Survey, 1909, p. 117.

Page 300 note 2 Butler, F. H., ‘Kaolinization and other changes in West of England rocks.’ Mineralogical Magazine, 1908, vol. xv, pp. 128–146 CrossRefGoogle Scholar. ‘The brecciation of mineralveins,’ ibid., 1911, vol. xvi, pp. 124-185

Page 301 note 1 F. H. Butler, loc. cit. (1908), p. 186.

Page 301 note 2 Cf. Judd, J. W., Quart. Journ. Geol. Soc., 1874, vol. xxx, p. 275 Google Scholar (footnote) ; Harker, A., ‘Tertiary Igneous Rocks of Skye.’ Mem. Geol. Survey, 1904, p. 2 Google Scholar (footnote).

Page 301 note 3 Teall, J. J. H., ‘British Petrography,’ 1888, p. 829 Google Scholar.